ASTROSAT CZTI

Data Quality Report

Orbit 10760

Creation date: 2024-06-27T16:03:31.225637
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_051T01_9000001550_10760cztM0_level2.evt modeM0/AS1G07_051T01_9000001550_10760cztM0_level2_quad_clean.evt
Size (bytes)599,212,80097,770,240
Size571.5 MB 93.2 MB
Events in quadrant A3,856,737607,267
Events in quadrant B5,771,401591,941
Events in quadrant C3,646,044610,191
Events in quadrant D4,320,112584,622

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01711210
B0225035
C0166888
D0184712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8148841.030928%
B81506247.656442%
C8148310.380461%
D8151730.895596%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 8791 8154 13 13 0.15% 0.16%
B 8791 8154 329 329 3.74% 4.03%
C 8791 8154 0 0 0.00% 0.00%
D 8791 8154 37 37 0.42% 0.45%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 248 46630 233.32 956 935 195.8
A 15 239 41429 206.76 956 935 195.8
A 15 174 34082 169.25 956 935 195.8
B 4 239 1544984 8434.47 941 916 183.1
B 0 85 447574 2439.87 941 916 183.1
B 0 214 32214 170.97 941 916 183.1
C 13 61 7049 27.75 934 935 220.3
C 8 222 2717 8.09 934 935 220.3
C 3 254 2602 7.57 934 935 220.3
D 8 195 247714 1088.02 926 896 226.9
D 1 52 170943 749.6 926 896 226.9
D 10 157 116625 510.15 926 896 226.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter